The rental of the priory shows that certain lands and rents were attached to the several conventual offices of almoner, precentor, cellarer, and chaplain of the infirmary.

Some idea of the wealth of the monastery may be gathered from the fact that at the dissolution it was rated at £912 12s. 8d. per annum, whereas the whole annual revenue of the 173 Augustine priories in the kingdom amounted to £33,027, the average being about one-fourth that of Plympton.

The founder, Bishop Warelwast, was buried here (as Leland says) in the chapter house of the priory, as were also the remains of his nephew, the fifth Bishop of Exeter. “Whoever is acquainted,” says Dr. Oliver, “with the deeds and writings of subsequent bishops, the immediate patrons of Plympton Priory, must have observed how closely they imitated the zeal of the founder in watching and guarding its interests and promoting its welfare.” Amongst other privileges, the prior and convent possessed the right of appointing the rural dean of Plympton.

The venerable building had been destroyed before Leland’s time, as is evident from his saying “the chirch that there a late stood,” meaning, of course, the priory church.

“At present,” says Dr. Oliver, “scarcely a vestige remains of any of the conventual buildings”; but in this respect, as we shall hereafter see, he is not quite correct.

Within one hundred and fifty years after the erection of the priory church, another sacred edifice was required for the growing population around; and Bishop Stapeldon, on Friday, October 29th, 1311, consecrated one in honour of the Virgin Mary, for the use of the parishioners. The present chancel and north aisle of Plympton St. Mary Church are portions of the church then dedicated, the great body of the church, as we now see it, having been re-built in a later age and style. It was situate “infra cemeterium prioratus”; and,[and,] as a mark of subjection, the parishioners were required to assist at divine service in the conventual church on the feast of its dedication, and to receive the blest palms there on Palm Sunday, and walk in the solemn procession of that day. This obligation was sanctioned by Archbishop Courtenay, when he made a visitation of the diocese of Exeter in 1387, and confirmed by Pope Boniface IX. For some neglect of this ancient custom Bishop Lacy expressed his high displeasure, and enjoined its strict observance in the future.

In Plympton St. Mary parish there were several chapels, subject to the priory—one at Newnham, another at Hemerdon, and a chapel attached to a lazar-house, of which there are now no remains. Sutton or South-town, now part of Plymouth, belonged to the priory of Plympton. “In the priors’ court there the portreve of the commonality was elected and sworne into office by his steward, and the markets, the instruments of punishment, and the assize of provisions belonged to him.”

Those were not exactly the “furzy down” days of Plymouth; but it was quite an insignificant place at that time, compared with its more wealthy neighbour, Plympton. Its great market, in fact, was Plympton. As Plymouth grew into more importance, as a naval as well as fishing station, and as the inhabitants became more influential, they naturally became anxious to obtain independence and the right of self-government, with municipal privileges. Accordingly, the inhabitants petitioned the king and parliament to be incorporated as early as 1412, and the answer to the petition was, “Let the petitioners compound with the lords having franchises before the next parliament, and report to them of their having made an agreement.” As a matter of course, the prior and convent at first opposed their views, but when the inhabitants succeeded, in 1439, in obtaining the royal licence and an Act of Parliament, which constituted them a corporation, under the title of the Mayor and Commonalty of the Borough of Plymouth, it was time for the prior and convent to come to terms with the reformers; and animated with an excellent feeling, they addressed a petition to Bishop Lacy, representing that it would be desirable to convey to this municipal body certain lands, tenements, franchises, fairs, markets, mills, and services, which they had possessed therein from time immemorial, and praying his consent to dispose of them. In January, 1440, as bishop and patron, he directed a commission to the archdeacon of Totnes to hold an inquisition, and to report to him the verdict of the jury. Accordingly, a public inquisition was held in the nave of the priory church of Plympton, on the 7th of January, the gates of the monastery, and the doors of the church, being thrown wide open for all comers to enter. That was a memorable day for the young town; and no doubt many Plymouthians flocked to the priory, anxious to know the award. The jury being sworn, found that the premises of the priory, within Sutton-Prior, had in part been burnt by a hostile descent from Brittany; that the yearly rental of the lands and tenements there was £8; of the courts, fairs, and markets, 60s.; and the clear profit from the mills something more than £10 yearly; that the offer by the mayor and corporation of the yearly fixed pension of £41 for the premises aforesaid was deemed by the prior and convent a satisfactory compensation, and that they were willing to accept the same; and the jury concurred in recommending such alienation and sale on such terms.

The parish church of St. Andrew, in Plymouth, continued an appendage to the priory nearly until the dissolution of the house. Its perpetual vicar, William de Wolley, became a professed religious at Plympton; and on resigning this benefice, the prior and convent granted, November 23rd, 1334, to Bishop Grandisson, the nomination of an incumbent, saving, however, their yearly pension of sixty marks. The bishop nominated Nicholas de Weyland, a canon of Plympton, December 23rd.

The chapel of St. Katherine on the How also belonged to the priory; but the following list of chapels appendant to this house will give some idea of the immense patronage which it enjoyed:—SS. Mary and Thomas, Plympton, Brixton, Wembury, Plymstock, Saundford-Spiney, Egg Buckland, Lanhorn (or Lanherne), Tamerton, Maristowe, Thrushelton, Uggeburgh, Exminster, Islington, Newton, Stoke-in-Teignhead, Blackhauton, Bratton, Meavy, St. Just, Petertavy, etc.; and the tithes of these places were appropriated to the priory for the promotion of hospitality and charity.